Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 699 · 40 sums

The trick (Nikhilam Navatashcaramam Dashatah): Write how far each number is from the base (− if below, + if above). Left part: cross-add — one number plus the other’s difference. Right part: multiply the two differences; it must have as many digits as the base has zeros (carry the extra). One above and one below? The right part is negative: take 1 from the left part and write base − that amount.

1. 1.104 × 101 =
2. 2.96 × 86 =
3. 3.110 × 102 =
4. 4.9 × 6 =
5. 5.85 × 88 =
6. 6.7 × 9 =
7. 7.104 × 89 =
8. 8.1010 × 1002 =
9. 9.96 × 93 =
10. 10.11 × 12 =
11. 11.9 × 9 =
12. 12.6 × 9 =
13. 13.105 × 102 =
14. 14.95 × 89 =
15. 15.86 × 97 =
16. 16.88 × 99 =
17. 17.111 × 89 =
18. 18.106 × 85 =
19. 19.14 × 14 =
20. 20.92 × 99 =
21. 21.95 × 85 =
22. 22.1012 × 1022 =
23. 23.6 × 8 =
24. 24.112 × 91 =
25. 25.1003 × 1037 =
26. 26.9 × 8 =
27. 27.963 × 998 =
28. 28.111 × 103 =
29. 29.108 × 105 =
30. 30.112 × 96 =
31. 31.13 × 11 =
32. 32.13 × 11 =
33. 33.11 × 7 =
34. 34.96 × 88 =
35. 35.95 × 89 =
36. 36.108 × 113 =
37. 37.87 × 98 =
38. 38.103 × 87 =
39. 39.111 × 105 =
40. 40.97 × 86 =

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